CN107144514A - A kind of device tested for the radial penetration of cylinder hollow soil sample and application method - Google Patents
A kind of device tested for the radial penetration of cylinder hollow soil sample and application method Download PDFInfo
- Publication number
- CN107144514A CN107144514A CN201710517344.3A CN201710517344A CN107144514A CN 107144514 A CN107144514 A CN 107144514A CN 201710517344 A CN201710517344 A CN 201710517344A CN 107144514 A CN107144514 A CN 107144514A
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- China
- Prior art keywords
- cylindrical shell
- tested
- top cover
- column
- hollow soil
- Prior art date
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Links
- 239000002689 soil Substances 0.000 title claims abstract description 60
- 230000035515 penetration Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000004575 stone Substances 0.000 claims abstract description 17
- 238000012360 testing method Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000005336 safety glass Substances 0.000 claims description 2
- 230000035699 permeability Effects 0.000 abstract description 7
- 238000011161 development Methods 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
Landscapes
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of device tested for the radial penetration of cylinder hollow soil sample and application method, including cylindrical shell, it is provided with the top of cylindrical shell in the middle part of top cover, top cover and is provided with through hole, intake chamber is installed in through hole, intake chamber top is connected with water inlet.Also include permeable net, column permeable net upper end is contacted or connected with top cover inwall, and lower end is connected with cylindrical shell bottom, intake chamber is located in column permeable net.It is used to place cylinder type hollow soil body sample between column permeable net and cylindrical shell, ring-type permeable stone is provided between soil body sample and cylindrical shell；Cylindrical shell bottom is provided with exhalant canal, and the bottom of ring-type permeable stone is connected with exhalant canal, and exhalant canal is connected with delivery port.Solve in the prior art without more targetedly testing equipment to the soil body the problem of permeability and water stability under the conditions of Radial Flow Through Porous Media are tested, more can really react the soil body infiltrative development law in the case of Radial Flow Through Porous Media.
Description
Technical field
The invention belongs to water and soil conservation and soil mechanics field, it is used for cylinder hollow soil sample radial penetration more particularly, to one kind
The device and application method of experiment.
Background technology
The permeability of the soil body is one of basic engineering characteristic of the soil body, be Practical Project and carry out soil body experimental study in
One of index that must be determined, soil body permeability is related to stability of the soil body under seepage effect, Canal in Loess Area soil erosion
Seriously, it has more close contact with the permeability and water stability of the soil body.
The infiltration of soil body sample has vertical, transverse direction and a radial penetration mode, the permeability test method of longitudinal direction and transverse direction and sets
Standby relative maturity, and experiment current for permeability of the soil body under the conditions of Radial Flow Through Porous Media and water stability and immature, have no
More targetedly test method and testing equipment, existing experiment controllability are poor.
Therefore, how to design one kind more can really react the soil body infiltrative differentiation rule in the case of Radial Flow Through Porous Media
The device of rule, is our technical issues that need to address.
The content of the invention
It is an object of the invention to provide a kind of device tested for the radial penetration of cylinder hollow soil sample and application method,
Solve in the prior art without steady to permeability of the soil body under the conditions of Radial Flow Through Porous Media and water compared with targetedly testing equipment
The problem of property is tested.The present invention more can really react the soil body infiltrative develop in the case of Radial Flow Through Porous Media and advise
Rule.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
The invention provides a kind of device tested for the radial penetration of cylinder hollow soil sample, including cylindrical shell, column
The top of shell is provided with top cover, and the middle part of top cover, which is provided with through hole, through hole, is provided with the intake chamber that can be moved up and down along through hole,
The top of intake chamber is connected with water inlet.
Also include column permeable net, the upper end of column permeable net contacts or connected with the inwall of top cover, column permeable net
The bottom interior wall connection of lower end and cylindrical shell, intake chamber is located in column permeable net.
It is used to place cylinder type hollow soil body sample, cylinder type hollow soil body sample between column permeable net and cylindrical shell
Ring-type permeable stone is provided between cylindrical shell；Cylindrical shell bottom is provided with exhalant canal, the bottom of ring-type permeable stone and water outlet
Passage is connected, and exhalant canal is connected with delivery port.
Further, the features of the present invention is also resided in：
Also include pressing clip, the top of pressing clip and the top of top cover are connected, under the bottom and cylindrical shell of pressing clip
Portion is connected, and screwing screw is provided between the top of pressing clip and top cover.
Rubber washer is provided between intake chamber and the through hole of top cover.
The inwall of top cover is provided with rubber waterproof pad.
The bottom interior wall of cylindrical shell is provided with the notch for providing the insertion of column permeable net.
Water inlet is connected with pressurized water source or without pressure water source.
The side wall of intake chamber is provided with scale.
Water inlet and water outlet are equipped with water check valve.
Intake chamber uses transparent safety glass material, and cylindrical shell and top cover use high-strength stainless steel material, post
Shape permeable net is steel mesh.
Present invention also offers it is a kind of for the radial penetration of cylinder hollow soil sample test device application method, open into
The mouth of a river and the opening and closing valve of delivery port；Fluid enters intake chamber from water inlet, then flows through cylindrical empty through column permeable net
In heart soil body sample, the drainage channel that cylindrical shell bottom is discharged to finally by ring-type permeable stone；After off-test, opening and closing is closed
Valve.
Compared with prior art, the present invention has following beneficial technique effect：
A kind of device tested for the radial penetration of cylinder hollow soil sample and application method that the present invention is provided, fluid is from top
Portion's water inlet enters intake chamber, then soil body sample is flowed through through column permeable net, finally by ring-type permeable stone by the soil body
Seepage flow be radially therefrom and be discharged in the drainage channel of cylindrical shell bottom, more can really react the soil body in Radial Flow Through Porous Media feelings
Infiltrative development law under condition.Take up an area smaller, use that can be convenient, flexible in soil body penetration process of the test, can be effective
Test efficiency is improved, strengthens the controllability of experiment, and reaches the purpose economized on resources.In addition the principle of the invention is easily understood,
It is easy and safe to operate, with good value for applications.
Brief description of the drawings
A kind of structural representation for device tested for the radial penetration of cylinder hollow soil sample that Fig. 1 provides for the present invention；
Wherein, 1, intake chamber；11st, water inlet；2nd, rubber washer；3rd, rubber waterproof pad；4th, ring-type permeable stone；5th, water outlet
Mouthful；6th, column permeable net；7th, cylindrical shell；8th, exhalant canal；9th, pressing clip；10th, screwing screw.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
Referring to Fig. 1, the invention provides a kind of device tested for the radial penetration of cylinder hollow soil sample, including outside column
Shell 7, the top of cylindrical shell 7 is provided with top cover, and the middle part of top cover, which is provided with through hole, through hole, to be provided with and can be moved up and down along through hole
Intake chamber 1, the top of intake chamber 1 is connected with water inlet 11.Also include column permeable net 6, the upper end and top of column permeable net 6
The inwall contact of lid is connected, and the lower end of column permeable net 6 is connected with the bottom interior wall of cylindrical shell 7, and intake chamber 1 is located at column
In permeable net 6.It is used to place cylinder type hollow soil body sample, the cylinder type hollow soil body between column permeable net 6 and cylindrical shell 7
Ring-type permeable stone 4 is provided between sample and cylindrical shell 7；The bottom of cylindrical shell 7 is provided with exhalant canal 8, the bottom of ring-type permeable stone 4
End is connected with exhalant canal 8, and exhalant canal 8 is connected with delivery port 5.
Illustratively, cylindrical shell 7 is made up of high-strength stainless steel material, it is ensured that do not deformed in whole process, is
The exhalant canal 8 for being available for oozing out water body outflow is left in the main body part of the present invention, bottom, and centre, which is left, is available for column permeable
The notch that net 6 is embedded in.
Ring-type permeable stone 4 is used to the seepage flow in the soil body being radially therefrom in the drainage channel for being discharged to base, itself section
For closed circular ring-type, the external diameter of ring-type permeable stone 4 is identical with the internal diameter of cylindrical shell 7, and the internal diameter of ring-type permeable stone 4 is tried with the soil body
The external diameter of sample is identical, thus ensure soil body sample, ring-type permeable stone 4, the three of cylindrical shell 7 coincide.
Column permeable net 6 is used to separate intake chamber 1 and soil body sample, and its external diameter is just identical with soil body sample internal diameter, steel
Net should have stronger non-deformability in itself, so as to ensure that the soil body is not destroyed in process of osmosis, not occur larger
Deformation, the notch that column permeable net 6 is just reserved with base coincide.
Rubber waterproof pad 3 be used for prevent in process of osmosis, fluid from top cover overflow, therefore be arranged in top cover it
Under, after top cover pressure testing, so as to play sealing function.
Rubber washer 2 is arranged on the reserved through hole wall of top cover, is primarily served water proof and is sealedly acted on, will can just intake
Room 1 is put into wherein so that in experiment is carried out, water body does not ooze out or overflowed from top cover.
Intake chamber 1 is arranged at the inside of column permeable net 6, and it can be moved up and down as needed, and this is as transparent tempering
Glass is made, and the situation of change of water inside scale, observable is set thereon；
Water inlet 11 is arranged at the top of intake chamber 1, may be connected to pressure or the water source without pressure provides water source for intake chamber 1,
Opening and closing valve is set thereon.
Top cover for middle part reserved through hole the solid top cover that is made of stainless steel material, for by inside the present apparatus with it is extraneous every
From and play impermeable role；
Pressing clip 9 is mainly used in applying vertical pressure to top cover, is made of stainless steel, screwing screw 10 is set above,
After dress sample terminates, pressing clip 9 is installed and screwing screw 10 is fastened and plays pressurization, so as to ensure the sealing of whole system.
Delivery port 5 is located at bottom, for collecting and measuring the water penetrated, and opening and closing valve is set thereon.
Present invention also offers it is a kind of for the radial penetration of cylinder hollow soil sample test device application method, open into
The mouth of a river 11 and the opening and closing valve of delivery port 5；Fluid enters intake chamber 1 from water inlet 11, then flows through circle through column permeable net 6
In the hollow soil body sample of cylindricality, the drainage channel that the bottom of cylindrical shell 7 is discharged to finally by ring-type permeable stone 4；After off-test,
Close opening and closing valve.
A kind of device tested for the radial penetration of cylinder hollow soil sample and application method that the present invention is provided, can be more
The real reaction soil body infiltrative development law in the case of Radial Flow Through Porous Media.Occupation of land is smaller, can be in soil body penetration process of the test
In convenient, flexible use, can effectively improve test efficiency, strengthen the controllability of experiment, and reach the mesh economized on resources
's.In addition the principle of the invention is easily understood, easy and safe to operate, with good value for applications.
Claims (10)
1. a kind of device tested for the radial penetration of cylinder hollow soil sample, it is characterised in that including cylindrical shell (7), column
The top of shell (7) is provided with top cover, and the middle part of top cover, which is provided with through hole, through hole, is provided with the water inlet that can be moved up and down along through hole
Room (1), the top of intake chamber (1) is connected with water inlet (11)；
Also include column permeable net (6), the upper end of column permeable net (6) contacts or connected with the inwall of top cover, column permeable net
(6) lower end is connected with the bottom interior wall of cylindrical shell (7), and intake chamber (1) is located in column permeable net (6)；
It is used to place cylinder type hollow soil body sample, the examination of the cylinder type hollow soil body between column permeable net (6) and cylindrical shell (7)
Ring-type permeable stone (4) is provided between sample and cylindrical shell (7)；Cylindrical shell (7) bottom is provided with exhalant canal (8), and ring-type is permeable
The bottom of stone (4) is connected with exhalant canal (8), and exhalant canal (8) is connected with delivery port (5).
2. the device according to claim 1 tested for the radial penetration of cylinder hollow soil sample, it is characterised in that also include
Pressing clip (9), the top of pressing clip (9) and the top of top cover are connected, the bottom of pressing clip (9) and the bottom of cylindrical shell (7)
Connection, is provided with screwing screw (10) between the top of pressing clip (9) and top cover.
3. the device according to claim 1 tested for the radial penetration of cylinder hollow soil sample, it is characterised in that intake chamber
(1) rubber washer (2) is provided between the through hole of top cover.
4. the device according to claim 1 tested for the radial penetration of cylinder hollow soil sample, it is characterised in that top cover
Inwall is provided with rubber waterproof pad (3).
5. the device according to claim 1 tested for the radial penetration of cylinder hollow soil sample, it is characterised in that outside column
The bottom interior wall of shell (7) is provided with the notch for providing column permeable net (6) insertion.
6. the device according to claim 1 tested for the radial penetration of cylinder hollow soil sample, it is characterised in that water inlet
(11) connected with pressurized water source or without pressure water source.
7. the device according to claim 1 tested for the radial penetration of cylinder hollow soil sample, it is characterised in that intake chamber
(1) side wall is provided with scale.
8. the device according to claim 1 tested for the radial penetration of cylinder hollow soil sample, it is characterised in that water inlet
And delivery port (5) place is equipped with water check valve (11).
9. the device according to claim 1 tested for the radial penetration of cylinder hollow soil sample, it is characterised in that intake chamber
(1) transparent safety glass material is used, cylindrical shell (7) and top cover use high-strength stainless steel material, column permeable net
(6) it is steel mesh.
10. a kind of application method of the device as claimed in claim 1 tested for the radial penetration of cylinder hollow soil sample, it is special
Levy and be, open the opening and closing valve of water inlet (11) and delivery port (5)；Fluid enters intake chamber (1) from water inlet (11), then
Cylinder type hollow soil body sample is flowed through through column permeable net (6), cylindrical shell (7) is discharged to finally by ring-type permeable stone (4)
In the drainage channel of bottom；After off-test, opening and closing valve is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710517344.3A CN107144514B (en) | 2017-06-29 | 2017-06-29 | Device for radial penetration experiment of cylindrical hollow soil sample and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710517344.3A CN107144514B (en) | 2017-06-29 | 2017-06-29 | Device for radial penetration experiment of cylindrical hollow soil sample and using method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107144514A true CN107144514A (en) | 2017-09-08 |
| CN107144514B CN107144514B (en) | 2023-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710517344.3A Active CN107144514B (en) | 2017-06-29 | 2017-06-29 | Device for radial penetration experiment of cylindrical hollow soil sample and using method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107144514B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444887A (en) * | 2018-04-16 | 2018-08-24 | 天津大学 | A kind of experimental rig that can directly or indirectly measure bury horizontal-hole blasting |
| CN114324099A (en) * | 2021-10-22 | 2022-04-12 | 深圳先进技术研究院 | Radial penetration experimental device and method |
| CN116183460A (en) * | 2022-12-21 | 2023-05-30 | 中山大学 | Roadbed filler permeability testing device and method |
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| JP2000081429A (en) * | 1998-09-07 | 2000-03-21 | National Agriculture Research Center | High precision easy measurement device for leaching amount of fertilizer constituent and environmental contaminant and the like |
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2017
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| AU2502784A (en) * | 1983-02-25 | 1984-08-30 | Gary L. Vondran | Concrete permeability testing device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444887A (en) * | 2018-04-16 | 2018-08-24 | 天津大学 | A kind of experimental rig that can directly or indirectly measure bury horizontal-hole blasting |
| CN108444887B (en) * | 2018-04-16 | 2024-05-24 | 天津大学 | Test device capable of directly and indirectly measuring horizontal permeability coefficient of soft clay |
| CN114324099A (en) * | 2021-10-22 | 2022-04-12 | 深圳先进技术研究院 | Radial penetration experimental device and method |
| CN114324099B (en) * | 2021-10-22 | 2024-06-25 | 深圳先进技术研究院 | Radial permeation experimental device and method |
| CN116183460A (en) * | 2022-12-21 | 2023-05-30 | 中山大学 | Roadbed filler permeability testing device and method |
| CN116183460B (en) * | 2022-12-21 | 2024-03-15 | 中山大学 | Roadbed filler permeability testing device and method |
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| Publication number | Publication date |
|---|---|
| CN107144514B (en) | 2023-04-11 |
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